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Official data from INPI

SISTEMA DE FILTRAGEM

Em AnáliseInvention Patent

Application data

Number

PI8003150

Type

Invention Patent

Filing

05/20/1980

Publication

-

Progress at the INPI

  1. Filing05/20/80
  2. Publication
  3. Examination04/13/82
  4. Allowance03/13/84
  5. Grant09/25/84
  6. Terminated09/06/88

The patent was granted on 09/25/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AMERICAN AIR FILTER COMPANY, INC.

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Inventors

H. T. (pessoa física)

Technical data

IPC Classification

Priority claims

US

040,693 · 05/21/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/06/1988

RPI 933

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

07/03/1984

RPI 715

Deferimento

#9.1

03/13/1984

RPI 699

Conhecimento de parecer técnico

#7.1

08/02/1983

RPI 667

Solicitação de exame técnico

#4.1

04/13/1982

RPI 599

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